2008LegacyGT Posted April 27, 2011 Share Posted April 27, 2011 I have a 2008 legacy GT limited, I was wondering if I could mate a aftermarket DP say invidia Perrin or Cobb to my stock exhaust? If I can is there anything I need or should worry about? Link to comment Share on other sites More sharing options...
goneskiian Posted April 28, 2011 Share Posted April 28, 2011 The COBB DP necks down to 2.5" so you can use the stock donut gasket. The Invidia and Perrin, I believe, are 3" flat flanges so you'll need something like THIS. WBR performance makes one too but their website isn't cooperating so you'll have to search for that yourself. Cheers! Link to comment Share on other sites More sharing options...
2008LegacyGT Posted April 28, 2011 Author Share Posted April 28, 2011 Awesome thank you that's exactly the info I was looking for. Link to comment Share on other sites More sharing options...
wpgspecb Posted April 29, 2011 Share Posted April 29, 2011 my perrin 3" mated to my stock exhaust without the part goneskiian posted Link to comment Share on other sites More sharing options...
2008LegacyGT Posted April 29, 2011 Author Share Posted April 29, 2011 Ha I guess there is only one way to find out... Link to comment Share on other sites More sharing options...
rtbrjason Posted April 29, 2011 Share Posted April 29, 2011 I used the 3" to 2.5" adapter as well. It's not ideal from a flow standpoint, but it seems to have sealed pretty well. Link to comment Share on other sites More sharing options...
wpgspecb Posted April 29, 2011 Share Posted April 29, 2011 I just replaced the gasket from dp to stock midpipe, it was disintegrated after approx 40,000km (been farting for around 33,000km) Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.